Change DetailsList sort icons to SortUp and SortDown from Up and Down#210

Merged

atneik merged 1 commit intomicrosoft:beta/mdl2from

leddie24:leddie24/add-sortup-sortdown-icons

Aug 30, 2016

Commits on Aug 29, 2016

Add SortUp and SortDown icons to _fabricExtraIcons and change DetailsHeader.tsx to include new icons
Eddie Liu
committed